#!/usr/bin/env bash
# vim: set filetype=sh
#
# Author: Cody Hiar
# Date: 2019-04-25
#
# Description: Search buffer for url results
#
# Set options:
#   e: Stop script if command fails
#   u: Stop script if unset variable is referenced
#   x: Debug, print commands as they are executed
#   o pipefail:  If any command in a pipeline fails it all fails
#
# IFS: Internal Field Separator
set -euo pipefail
IFS=$'\n\t'

# Colors for printing
G='\e[0;32m' # Green
LG='\e[0;37m' # Light Gray
C='\e[0;36m' # Cyan
NC='\e[0m' # No Color

# Immutable globals
readonly ARGS=( "$@" )
readonly NUM_ARGS="$#"
readonly PROGNAME=$(basename "$0")
readonly BUFFER='/tmp/tmuxcopy.log'
POSITION=1

cleanup() {
  rm -rf "$BUFFER"
}

create_buffer() {
    touch "$BUFFER"
    trap cleanup EXIT
}

capture_pane() {
    tmux capture-pane -S -9000000 -p > "$BUFFER"
}

find_urls() {
    perl -wnl -e '/https?\:\/\/[^\s]+[\/\w]/ and print $&' "$BUFFER"
}

# Main loop of program
main() {
    create_buffer
    capture_pane
    URL=$(find_urls | tail -n "$POSITION")
    tmux copy-mode ; tmux send -X search-backward $URL
}
main